155,189
155,189 is a composite number, odd.
155,189 (one hundred fifty-five thousand one hundred eighty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 311 × 499. Written other ways, in hexadecimal, 0x25E35.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 1,800
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 981,551
- Recamán's sequence
- a(477,741) = 155,189
- Square (n²)
- 24,083,625,721
- Cube (n³)
- 3,737,513,792,016,269
- Divisor count
- 4
- σ(n) — sum of divisors
- 156,000
- φ(n) — Euler's totient
- 154,380
- Sum of prime factors
- 810
Primality
Prime factorization: 311 × 499
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√155,189 = [393; (1, 15, 1, 3, 4, 196, 1, 2, 1, 3, 2, 3, 1, 2, 1, 196, 4, 3, 1, 15, 1, 786)]
Period length 22 — the block in parentheses repeats forever.
Representations
- In words
- one hundred fifty-five thousand one hundred eighty-nine
- Ordinal
- 155189th
- Binary
- 100101111000110101
- Octal
- 457065
- Hexadecimal
- 0x25E35
- Base64
- Al41
- One's complement
- 4,294,812,106 (32-bit)
- Scientific notation
- 1.55189 × 10⁵
- As a duration
- 155,189 s = 1 day, 19 hours, 6 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρνερπθʹ
- Mayan (base 20)
- 𝋳·𝋧·𝋳·𝋩
- Chinese
- 一十五萬五千一百八十九
- Chinese (financial)
- 壹拾伍萬伍仟壹佰捌拾玖
Also seen as
UTF-8 encoding: F0 A5 B8 B5 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.94.53.
- Address
- 0.2.94.53
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.94.53
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 155,189 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.